package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * 菜品Controller
 * @author Yummy
 * @version 1.0
 */
@RestController("adminDishController")
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation(value = "新增菜品")
    public Result save(@RequestBody DishDTO dishDTO){
        log.info("新增菜品:{}", dishDTO);
        dishService.saveWithFlavor(dishDTO);
        //清理缓存数据
        String key = "dish_" + dishDTO.getCategoryId();
        clearCache(key);
        return Result.success();
    }

    /**
     * 分页查询菜品信息
     * @param pageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation(value = "分页查询菜品信息")
    public Result<PageResult> page(DishPageQueryDTO pageQueryDTO){
        log.info("分页查询菜品信息:{}", pageQueryDTO);
        PageResult pageResult = dishService.pageQuery(pageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 批量删除菜品
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation(value = "根据id删除菜品")
    public Result delete(@RequestParam List<Long> ids) {    //@RequestParam用于接收请求参数，可以解析前端传递的字符串
        log.info("批量删除菜品:{}", ids);
        dishService.delete(ids);
        //清理缓存数据，直接清理所有分类的数据
        clearCache("dish_*");
        return Result.success();
    }

    /**
     * 根据id查询菜品信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation(value = "根据id查询菜品信息")
    public Result<DishVO> queryById(@PathVariable Long id) {
        log.info("根据id查询菜品信息:{}", id);
        DishVO dishVO = dishService.queryByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品信息
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation(value = "修改菜品信息")
    public Result update(@RequestBody DishDTO dishDTO) {
        log.info("修改菜品信息:{}", dishDTO);
        dishService.updateWithFlavor(dishDTO);
        //清理缓存数据，由于可能修改分类，导致不止影响某一个分类，因此直接清理全部缓存
        clearCache("dish_*");
        return Result.success();
    }

    /**
     * 菜品起售停售
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("起售停售菜品")
    public Result startOrStop(@PathVariable Integer status, Long id) {
        log.info("起售停售菜品：{}，id:{}", status, id);
        // 启用或禁用菜品的逻辑
        dishService.startOrStop(status, id);
        // 清理缓存数据，若精确清理，需要查询数据库得到分类id，因此直接全部清理
        clearCache("dish_*");
        return Result.success();
    }

    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(@RequestParam Long categoryId) {
        log.info("根据分类id查询菜品:{}", categoryId);
        List<Dish> dishes = dishService.list(categoryId);
        return Result.success(dishes);
    }

    private void clearCache(String pattern) {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
